SCIN 130 Quiz 5 - Questions, Answers and Feedback

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SCIN 130 Quiz 5. Questions And Answers. Complete Solution. A+ Graded.Question 1 of 31 3.0 Points What is the central dogma of genetic information?  A. DNA produces proteins directly  B. DNA enco... des RNA, which in turn encodes protein  C. RNA stores our genome for safety  D. proteins code for DNA and RNA Feedback: Great job. Question 2 of 31 3.0 Points How is it possible that each daughter cell during cell replication receives an identical copy of the DNA?  A. DNA is replicated following mitosis or meiosis, so is transferred after the new cells are formed  B. DNA is not identical in every cell, so all daughter cells have different copies  C. DNA is replicated individually in each new cell after meiosis and mitosis  D. DNA is replicated during the synthesis phase of the cell cycle, prior to mitosis or meiosis Feedback: DNA must be replicated prior to the new cells being created, so each can receive an exact copy. Read more on DNA replication in Chapter 9 Question 3 of 31 3.0 Points The steps from DNA to mRNA are initiation, elongation and what?  A. commencement  B. termination  C. origin  D. template Feedback: Great job. Question 4 of 31 3.0 Points Why does one strand of DNA replicate as a continuous strand, and the other in fragments?  A. they are anti-parallel, and DNA polymerase can synthesize in either direction  B. they are parallel, and DNA polymerase can synthesize in either direction  C. they are anti-parallel, and DNA polymerase can only synthesize from 5’ to 3’  D. they are parallel, and DNA polymerase can synthesize from 5’ to 3’ Feedback: Great job. Question 5 of 31 3.0 Points Which portion of the primary RNA transcript is removed because it does not encode a functional protein?  A. intron  B. promoter  C. spliced  D. exon Feedback: Great job. Question 6 of 31 3.0 Points DNA is said to be in what shape?  A. a triple helix  B. a triple twist  C. a double corkscrew  D. a double helix ............................................CONTINUED........................... [Show More]

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